Question

Consider two solutions, solution A and solution B. [H ] in solution A is 500 times greater than that in solution B. what is the difference in the pH values of the two solutions?

Answer 1

Answer:

-2.70 is the difference in the pH values of the two solutions.

Explanation:

Hydrogen ion concentration in solution A = $[H^+]_A$

Hydrogen ion concentration in solution B = $[H^+]_B$

The pH of solution A: pH

$pH=-\log[H^+]_A$

The pH of solution B: pH'

$pH'=-\log[H^+]_B$

$[H^+]_A=500\times [H^+]_B$

$pH=-\log[H^+]_A$

$pH=-\log[500[H^+]}_B]$

$pH=-\log[500]+(-\log[H^+]_B])$

$pH=-2.70+pH'$

$pH-pH'=-2.70$

-2.70 is the difference in the pH values of the two solutions.